We demonstrate a compact system incorporating a 32-element linear array of ultraviolet (UV) light-emitting
diodes (LEDs) to the in-flight fluorescence detection of aerosolized particles. Custom electronics manage a standalone
system and enable real-time processing of spectral data, which is used to cue a miniaturized aerodynamic deflector for
physical particle separation. This front-end system improves the prospects for many second-stage analysis methods by
reducing the background particle burden and providing a suspicious-particle enriched sample. The performance of UV
LED arrays as an excitation source is established by the ability to detect emission from NADH and tryptophan in aerosol
samples. On-the-fly fluorescence collection, operation of a real-time spectral algorithm, and aerosol concentration is
demonstrated by separating particles that exhibit a specific spectral feature from a background of otherwise fluorescing
particles.

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Journal of Applied Remote SensingJournal of Astronomical Telescopes Instruments and SystemsJournal of Biomedical OpticsJournal of Electronic ImagingJournal of Medical ImagingJournal of Micro/Nanolithography, MEMS, and MOEMSJournal of NanophotonicsJournal of Photonics for EnergyNeurophotonicsOptical EngineeringSPIE Reviews